Solution to install error 8007007B for WIN10 Mobile preview version 14977

Microsoft said that if you encounter error 8007007B when installing the latest Windows Mobile Preview version 14977, you must wait until the next push.

After weeks of waiting, Microsoft now publishes a new test preview for mobile devices. This time, the company is pushing Windows Mobile preview 14977 to the fast-track insider members and has made a series of improvements and changes, and Microsoft Edge supports epub file formats on mobile devices. However, some phones may receive error 8007007B, which can cause the phone to not install today's updates. The Microsoft Community Forum has a dedicated post that is updated before it is known.

In fact, the same error is noted in this version of the update log notes. Microsoft says the error could be on devices that are stored inside 8GB, such as Lumia 550.

Microsoft explained that if you encounter error 8007007B, you will not be able to install this version. In addition, the company noted that there is currently no workaround and you have to wait until the next Windows Mobile Preview version.

It is also worth mentioning that this issue does not affect all equipment and will not have a long-term impact. In this case, your mobile phone appears in error 8007007B, the installation will fail, and the device will be restored and booted to the previous version of the operating system.

Microsoft also confirms that they are aware of the problem and are currently working on solutions for the affected devices.